Update makefile.
Update makefile.

semahawk/elixir,gfvcastro/elixir,ggcampinho/elixir,kelvinst/elixir,pedrosnk/elixir,antipax/elixir,kimshrier/elixir,pedrosnk/elixir,kelvinst/elixir,elixir-lang/elixir,joshprice/elixir,antipax/elixir,beedub/elixir,semahawk/elixir,lexmag/elixir,beedub/elixir,ggcampinho/elixir,kimshrier/elixir,michalmuskala/elixir,gfvcastro/elixir,lexmag/elixir